Routine Maintenance - Breeze AWC Series User Manual

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9. ROUTINE MAINTENANCE

• Regular maintenance is needed each year. The
• Before any maintenance work is undertaken:
Stop fan in accordance to regulations and disconnect all poles from mains supply.
o
Wait until impeller is stationary.
o
Make sure that a restart is not possible
o
• Use only original spare parts tested and approved by the manufacturer.
• The following safety notes must be observed when maintaining the machine.
• Replace the ball bearings of the motor whenever the grease utilization period has elapsed in accordance with the maintenance
instructions of the manufacturer.
• The technical maintenance includes periodic cleaning of the surfaces from accumulated dust and dirt.
• Use a soft dry brush or a vacuum cleaner to remove dust.
• Only use usual commercial cleaning material paying attention to the prescribed safety measures and do not use any abrasive
tools (surface protection will be destroyed).
Prior to all servicing work:
• Bring the fan to a halt in the prescribed manner and completely isolate the fan from the mains supply.
• Wait until the rotor has come to a halt.
• Ensure that the machine cannot be switched on again.
• Clean the fan
General Check:
• Too much bearing play?
• Lubricant leaking from the bearings?
• Surface protective coating damaged?
• Attention: Conveyed medium too aggressive?
• Unusual noises during operation?
• Fan output still sufficient for possibly extended or shortened ducting system?
Clean fan:
• Unscrews external terminal box for electric installation.
• Unscrews and remove protection guard and motor impeller.
• Clean plate casing with inlet cone.
• Clean motor impeller.
o Do not flood motor.
o Do not bend impeller, blades.
• Assembly fan.
• Control whether installation is correct:
Motor impeller must rotate free
o
The gap between impeller and casing must be regular.
o
o Checking direction of rotation is correct.
• Install the fan into the wall or frame.
• Push into operation after clean.
• Connect electric supply of motor.
10. REPAIR
Before any repairs are undertaken please:
• Stop fan in accordance to regulations and disconnect all poles
from mains supply.
• Wait until impeller is stationary.
• Make sure that a restart is not possible.
• Only use original spare parts manufactured and supplied by
Breeze Fan.
Change of the motor impeller:
Ÿ Disconnect electric supply.
Ÿ
Remove protection guard.
Ÿ
Unscrew motor suspension and pull out of wall plate
complete with motor impeller.
Ÿ Remove motor suspension from motor impeller.
Ÿ
Change new motor impeller on protection guard, insert in
wall plate (casing) and secure with screws.
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impeller blades require thorough cleaning once in 6 months.
Ÿ Control whether direction of rotation is correct.
Motor and impeller must rotate free.
o
Annular gap between impeller and wall plate must be
o
regular.
Control whether direction of rotation is correct.
o
o Install maintenance cover if have.
Ÿ
Push into operation after repaired.
Ÿ Connect electric supply of motor.
USER'S MANUAL
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AWS SERIES
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